/**
  ******************************************************************************
  * @file    stm32f4xx_ll_gpio.c
  * @author  MCD Application Team
  * @brief   GPIO LL module driver.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */
#if defined(USE_FULL_LL_DRIVER)

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_ll_gpio.h"
#include "stm32f4xx_ll_bus.h"
#ifdef  USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif

/** @addtogroup STM32F4xx_LL_Driver
  * @{
  */

#if defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOF) || defined (GPIOG) || defined (GPIOH) || defined (GPIOI) || defined (GPIOJ) || defined (GPIOK)

/** @addtogroup GPIO_LL
  * @{
  */

/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup GPIO_LL_Private_Macros
  * @{
  */
#define IS_LL_GPIO_PIN(__VALUE__)          (((0x00000000U) < (__VALUE__)) && ((__VALUE__) <= (LL_GPIO_PIN_ALL)))

#define IS_LL_GPIO_MODE(__VALUE__)         (((__VALUE__) == LL_GPIO_MODE_INPUT)     ||\
                                            ((__VALUE__) == LL_GPIO_MODE_OUTPUT)    ||\
                                            ((__VALUE__) == LL_GPIO_MODE_ALTERNATE) ||\
                                            ((__VALUE__) == LL_GPIO_MODE_ANALOG))

#define IS_LL_GPIO_OUTPUT_TYPE(__VALUE__)  (((__VALUE__) == LL_GPIO_OUTPUT_PUSHPULL)  ||\
                                            ((__VALUE__) == LL_GPIO_OUTPUT_OPENDRAIN))

#define IS_LL_GPIO_SPEED(__VALUE__)        (((__VALUE__) == LL_GPIO_SPEED_FREQ_LOW)       ||\
                                            ((__VALUE__) == LL_GPIO_SPEED_FREQ_MEDIUM)    ||\
                                            ((__VALUE__) == LL_GPIO_SPEED_FREQ_HIGH)      ||\
                                            ((__VALUE__) == LL_GPIO_SPEED_FREQ_VERY_HIGH))

#define IS_LL_GPIO_PULL(__VALUE__)         (((__VALUE__) == LL_GPIO_PULL_NO)   ||\
                                            ((__VALUE__) == LL_GPIO_PULL_UP)   ||\
                                            ((__VALUE__) == LL_GPIO_PULL_DOWN))

#define IS_LL_GPIO_ALTERNATE(__VALUE__)    (((__VALUE__) == LL_GPIO_AF_0  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_1  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_2  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_3  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_4  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_5  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_6  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_7  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_8  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_9  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_10 )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_11 )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_12 )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_13 )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_14 )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_15 ))
/**
  * @}
  */

/* Private function prototypes -----------------------------------------------*/

/* Exported functions --------------------------------------------------------*/
/** @addtogroup GPIO_LL_Exported_Functions
  * @{
  */

/** @addtogroup GPIO_LL_EF_Init
  * @{
  */

/**
  * @brief  De-initialize GPIO registers (Registers restored to their default values).
  * @param  GPIOx GPIO Port
  * @retval An ErrorStatus enumeration value:
  *          - SUCCESS: GPIO registers are de-initialized
  *          - ERROR:   Wrong GPIO Port
  */
ErrorStatus LL_GPIO_DeInit(GPIO_TypeDef *GPIOx)
{
    ErrorStatus status = SUCCESS;

    /* Check the parameters */
    assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));

    /* Force and Release reset on clock of GPIOx Port */
    if (GPIOx == GPIOA)
    {
        LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOA);
        LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOA);
    }
    else if (GPIOx == GPIOB)
    {
        LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOB);
        LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOB);
    }
    else if (GPIOx == GPIOC)
    {
        LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOC);
        LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOC);
    }
#if defined(GPIOD)
    else if (GPIOx == GPIOD)
    {
        LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOD);
        LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOD);
    }
#endif /* GPIOD */
#if defined(GPIOE)
    else if (GPIOx == GPIOE)
    {
        LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOE);
        LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOE);
    }
#endif /* GPIOE */
#if defined(GPIOF)
    else if (GPIOx == GPIOF)
    {
        LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOF);
        LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOF);
    }
#endif /* GPIOF */
#if defined(GPIOG)
    else if (GPIOx == GPIOG)
    {
        LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOG);
        LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOG);
    }
#endif /* GPIOG */
#if defined(GPIOH)
    else if (GPIOx == GPIOH)
    {
        LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOH);
        LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOH);
    }
#endif /* GPIOH */
#if defined(GPIOI)
    else if (GPIOx == GPIOI)
    {
        LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOI);
        LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOI);
    }
#endif /* GPIOI */
#if defined(GPIOJ)
    else if (GPIOx == GPIOJ)
    {
        LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOJ);
        LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOJ);
    }
#endif /* GPIOJ */
#if defined(GPIOK)
    else if (GPIOx == GPIOK)
    {
        LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOK);
        LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOK);
    }
#endif /* GPIOK */
    else
    {
        status = ERROR;
    }

    return (status);
}

/**
  * @brief  Initialize GPIO registers according to the specified parameters in GPIO_InitStruct.
  * @param  GPIOx GPIO Port
  * @param  GPIO_InitStruct pointer to a @ref LL_GPIO_InitTypeDef structure
  *         that contains the configuration information for the specified GPIO peripheral.
  * @retval An ErrorStatus enumeration value:
  *          - SUCCESS: GPIO registers are initialized according to GPIO_InitStruct content
  *          - ERROR:   Not applicable
  */
ErrorStatus LL_GPIO_Init(GPIO_TypeDef *GPIOx, LL_GPIO_InitTypeDef *GPIO_InitStruct)
{
    uint32_t pinpos     = 0x00000000U;
    uint32_t currentpin = 0x00000000U;

    /* Check the parameters */
    assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
    assert_param(IS_LL_GPIO_PIN(GPIO_InitStruct->Pin));
    assert_param(IS_LL_GPIO_MODE(GPIO_InitStruct->Mode));
    assert_param(IS_LL_GPIO_PULL(GPIO_InitStruct->Pull));

    /* ------------------------- Configure the port pins ---------------- */
    /* Initialize  pinpos on first pin set */
    pinpos = POSITION_VAL(GPIO_InitStruct->Pin);

    /* Configure the port pins */
    while (((GPIO_InitStruct->Pin) >> pinpos) != 0x00000000U)
    {
        /* Get current io position */
        currentpin = (GPIO_InitStruct->Pin) & (0x00000001U << pinpos);

        if (currentpin)
        {

            if ((GPIO_InitStruct->Mode == LL_GPIO_MODE_OUTPUT) || (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE))
            {
                /* Check Speed mode parameters */
                assert_param(IS_LL_GPIO_SPEED(GPIO_InitStruct->Speed));

                /* Speed mode configuration */
                LL_GPIO_SetPinSpeed(GPIOx, currentpin, GPIO_InitStruct->Speed);

                /* Check Output mode parameters */
                assert_param(IS_LL_GPIO_OUTPUT_TYPE(GPIO_InitStruct->OutputType));

                /* Output mode configuration*/
                LL_GPIO_SetPinOutputType(GPIOx, currentpin, GPIO_InitStruct->OutputType);
            }

            /* Pull-up Pull down resistor configuration*/
            LL_GPIO_SetPinPull(GPIOx, currentpin, GPIO_InitStruct->Pull);

            if (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE)
            {
                /* Check Alternate parameter */
                assert_param(IS_LL_GPIO_ALTERNATE(GPIO_InitStruct->Alternate));

                /* Speed mode configuration */
                if (POSITION_VAL(currentpin) < 0x00000008U)
                {
                    LL_GPIO_SetAFPin_0_7(GPIOx, currentpin, GPIO_InitStruct->Alternate);
                }
                else
                {
                    LL_GPIO_SetAFPin_8_15(GPIOx, currentpin, GPIO_InitStruct->Alternate);
                }
            }

            /* Pin Mode configuration */
            LL_GPIO_SetPinMode(GPIOx, currentpin, GPIO_InitStruct->Mode);
        }
        pinpos++;
    }

    return (SUCCESS);
}

/**
  * @brief Set each @ref LL_GPIO_InitTypeDef field to default value.
  * @param GPIO_InitStruct pointer to a @ref LL_GPIO_InitTypeDef structure
  *                          whose fields will be set to default values.
  * @retval None
  */

void LL_GPIO_StructInit(LL_GPIO_InitTypeDef *GPIO_InitStruct)
{
    /* Reset GPIO init structure parameters values */
    GPIO_InitStruct->Pin        = LL_GPIO_PIN_ALL;
    GPIO_InitStruct->Mode       = LL_GPIO_MODE_ANALOG;
    GPIO_InitStruct->Speed      = LL_GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct->OutputType = LL_GPIO_OUTPUT_PUSHPULL;
    GPIO_InitStruct->Pull       = LL_GPIO_PULL_NO;
    GPIO_InitStruct->Alternate  = LL_GPIO_AF_0;
}

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

#endif /* defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOF) || defined (GPIOG) || defined (GPIOH) || defined (GPIOI) || defined (GPIOJ) || defined (GPIOK) */

/**
  * @}
  */

#endif /* USE_FULL_LL_DRIVER */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
